Kelly Osbourne said that her good friend Amy Winehouse's funeral on July 26, was "the saddest day" of her life.
"Today was the saddest day of my life!" Osbourne wrote on Twitter, following the service. Upon hearing the news of the singer's death, Osbourne wrote, "I can't even breath right my now I'm crying so hard I just lost 1 of my best friends. I love you forever Amy & will never forget the real you!"
At the funeral in north London, Osbourne wore her hair in a beehive as a tribute to the singer, who debuted the signature look at the height of her fame.
Osbourne also lashed out at those who have spoken to the press about the late singer, writing on the micro-blogging site, "Any 'friend' of Amy's talking 2 the press/TV are not her actual friend's. Her real friends have more dignity then to get $ 2 talk about her!"
An autopsy failed to determine the cause of the singer's death. Police are awaiting the results of toxicology tests, which are expected to take two to four weeks.
More than 100 people attended the service at Edgwarebury Cemetery in north London. Mark Ronson, who produced Winehouse's Grammy-winning single "Rehab" and her 2006 album "Back To Black," was also among them. (see photos from Amy Winehouse's funeral).
The Jewish service was led by a rabbi and included prayers in English and Hebrew and reminiscences from Winehouse's father, Mitch Winehouse, who ended his eulogy with the words "Goodnight, my angel, sleep tight. Mummy and Daddy love you ever so much."
The service was being followed by cremation at London's Golders Green Crematorium before the family begins Shiva, a Jewish traditional period of mourning."Knowing she wasn't depressed, knowing she passed away, knowing she passed away happy - it makes us all feel better," Mitch Winehouse later said in a statement, published by People magazine. "She was the happiest she has been for years."
Meanwhile, MTV reportedly plans to re-broadcast a concert the singer had back in 2007 to celebrate her "life and musical legacy," according to The Hollywood Reporter. The concert was a part of MTV's 45th at Night concert series and included a collaboration with rapper Mos Def on the song "Love Is a Losing Game" as well as performances of her hit songs "Rehab" and "Back To Black."